Add a flag to allow for linking against shared system protobuf (#7577)
Add a flag to allow for linking against shared system protobuf (#7577)

In some environments you would like to link to the shared libprotobuf from the system. This is fine to use if you have full control over all protobuf users in your environment.

This need for the existence of this option is already mentioned as a comment in CMakeLists.txt, this adds it now.
microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime